diff --git a/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/staff/StaffQueueManager.java b/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/staff/StaffQueueManager.java
index beec9c3..69693c4 100644
--- a/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/staff/StaffQueueManager.java
+++ b/src/net/mc_pandacraft/java/plugin/pandacraftutils/modules/staff/StaffQueueManager.java
@@ -35,28 +35,20 @@ public class StaffQueueManager {
 	private Scoreboard scoreboardPlayerQueue = Bukkit.getScoreboardManager().getNewScoreboard();
 	
 	
-	
 	public StaffQueueManager() {
-		
-		try {
-			List<StaffTicketElement> elmts = ORM.getTable(StaffTicketTable.class).getAll(null, "creationTime ASC, id ASC", null, null);
+		plugin.getServer().getScheduler().runTaskTimerAsynchronously(plugin, new Runnable() {
 			
-			for (StaffTicketElement el : elmts)
-				playerQueue.add(new WaitingPlayer(el));
-			
-		} catch (SQLException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
-		}
-		
-		updateScoreBoardWaitingList();
+			@Override
+			public void run() {
+				updateQueueFromDB();
+			}
+		}, 1, 30*20);
 	}
 	
 	
 	
-	
 	// le joueur ajouté doit-être en ligne
-	public void addWaitingPlayer(Player p, String m) {
+	public synchronized void addWaitingPlayer(Player p, String m) {
 		if (getWaitingPlayer(p) != null) return; // le joueur est déjà dans la file
 		playerQueue.add(new WaitingPlayer(p.getName(), m, p.getLocation()));
 		updateScoreBoardWaitingList();
@@ -66,7 +58,7 @@ public class StaffQueueManager {
 	
 	
 	
-	public WaitingPlayer getWaitingPlayer(String p) {
+	public synchronized WaitingPlayer getWaitingPlayer(String p) {
 		for (WaitingPlayer wp : playerQueue)
 		{
 			if (wp != null && wp.getPlayerName().equalsIgnoreCase(p))
@@ -76,14 +68,14 @@ public class StaffQueueManager {
 	}
 	
 	
-	public WaitingPlayer getWaitingPlayer(OfflinePlayer p) {
+	public synchronized WaitingPlayer getWaitingPlayer(OfflinePlayer p) {
 		return getWaitingPlayer(p.getName());
 	}
 	
 	
 	
 	
-	public int getPlayerPosition(OfflinePlayer p) {
+	public synchronized int getPlayerPosition(OfflinePlayer p) {
 		int i = 0;
 		for (WaitingPlayer wp : playerQueue)
 		{
@@ -96,7 +88,7 @@ public class StaffQueueManager {
 	
 
 	
-	public void removePlayer(String p) {
+	public synchronized void removePlayer(String p) {
 		WaitingPlayer wp = getWaitingPlayer(p);
 		if (wp != null)
 		{
@@ -105,7 +97,7 @@ public class StaffQueueManager {
 			updateScoreBoardWaitingList();
 		}
 	}
-	public void removePlayer(OfflinePlayer p) {
+	public synchronized void removePlayer(OfflinePlayer p) {
 		removePlayer(p.getName());
 	}
 	
@@ -113,7 +105,7 @@ public class StaffQueueManager {
 	
 	
 	
-	public WaitingPlayer getSelectedWaitingPlayer(Player staffPlayer) {
+	public synchronized WaitingPlayer getSelectedWaitingPlayer(Player staffPlayer) {
 		String staffName = staffPlayer.getName();
 		for (WaitingPlayer wp : playerQueue)
 		{
@@ -127,7 +119,7 @@ public class StaffQueueManager {
 	
 	
 	
-	public void updateScoreBoardWaitingList() {
+	public synchronized void updateScoreBoardWaitingList() {
 		
 		// contient les joueurs qui sont associés à un membre du staff
 		ArrayList<String> selectedPlayers = new ArrayList<String>();
@@ -171,7 +163,7 @@ public class StaffQueueManager {
 	
 	
 
-	public void showWaintingList(CommandSender sender) {
+	public synchronized void showWaintingList(CommandSender sender) {
 		
 		
 		sender.sendMessage(ChatColor.BOLD+"--- File d'attente des joueurs pour le staff ---");
@@ -198,7 +190,7 @@ public class StaffQueueManager {
 	
 	
 	
-	public List<String> getWaitingPlayerNames() {
+	public synchronized List<String> getWaitingPlayerNames() {
 		List<String> l = new ArrayList<String>();
 		
 		for (WaitingPlayer wp : playerQueue) {
@@ -214,6 +206,22 @@ public class StaffQueueManager {
 	
 	
 	
+	public synchronized void updateQueueFromDB() {
+		try {
+			List<StaffTicketElement> elmts = ORM.getTable(StaffTicketTable.class).getAll(null, "creationTime ASC, id ASC", null, null);
+			
+			playerQueue.clear();
+			
+			for (StaffTicketElement el : elmts)
+				playerQueue.add(new WaitingPlayer(el));
+			
+			updateScoreBoardWaitingList();
+			
+		} catch (SQLException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+	}
 	
 	
 	
@@ -221,7 +229,14 @@ public class StaffQueueManager {
 	
 	
 	
-	public void onPlayerJoin(PlayerJoinEvent event) {
+	
+	
+	
+	
+	
+	
+	
+	public synchronized void onPlayerJoin(PlayerJoinEvent event) {
 		Player p = event.getPlayer();
 		if (OnlinePlayerManager.get(p).isInStaff())
 			p.setScoreboard(scoreboardPlayerQueue);
@@ -232,7 +247,7 @@ public class StaffQueueManager {
 	}
 	
 	
-	public void onPlayerQuit(PlayerQuitEvent event) {
+	public synchronized void onPlayerQuit(PlayerQuitEvent event) {
 		
 		// on vérifie si un membre du staff se déconnecte
 		for (WaitingPlayer wp : playerQueue) {